Kessil or Prime 16hd for sps

[Jonathan MULLAN]

hi all as title can't make my mind up on what light to use i have both the tank is 18x18x18 sps mainly towards the top lps at the bottom

 

[Tuffyyyyy]

Why not use both? I’ve had an AI Prime & Kessil a360 together over my water box 20.

 

[Montiman]

I think it is simply about picking your flavor. The output and par will be similar. The only thing I would say is that a single point source light is not ideal for sps. You would likely be better with a couple smaller lights to get better coverage. For example 2 a160 kessils or 2 primes. If that seems crazy then 2 a80s instead of 1 a160.

 

[Charlie’s Frags]

hi all as title can't make my mind up on what light to use i have both the tank is 18x18x18 sps mainly towards the top lps at the bottom

2 primes or a single 32 would be better. The 2 primes will yield better coverage and more potential par. I have a single prime 16 on a 12” cube frag tank and it barely provides enough par sps on the bottom half. You could probably get away with 1 unit if the sps are located closer to the light source but you would need another fixture later if your plans are to go wall to wall sps.

 

[justmee]

I've had both, and I have to say SPS growth response has been a far better with the Kessil 360s, this is just from my experience... I like AI, but the PRIMEs are just not as strong as the Kessils. Goodluck...

 

[Montiman]

To be clear we need to compare lights of equal wattage A prime is equivalent to an A160 both at around 50 watts and a 360/360x is equivalent to a hydra 32 both at around 90watts.